Johnson William P
University of Utah, Department of Geology and Geophysics, 719 WBB, 135 South 1460 East, Salt Lake City, UT 84112-0111, USA.
J Contam Hydrol. 2006 Jun 30;86(1-2):160-1; discussion 162. doi: 10.1016/j.jconhyd.2006.02.005. Epub 2006 Mar 20.